TY  - RPRT
TI  - Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia--Effects of agricultural activities on, and distribution of, nitrate and other inorganic constituents in the surficial aquifer
AU  - P. A. Hamilton
AU  - J. M. Denver
AU  - P. J. Phillips
AU  - R. J. Shedlock
PY  - 1993
DO  - 10.3133/ofr9340
UR  - https://pubs.usgs.gov/publication/ofr9340
ID  - ofr9340
ER  -